Condensing and vacuum pump



S. LIPPERT.

CONDENSING AND VACUUM PUMP.

APPLICATION FILED Aue.21.'191sI 1 39,402, Patented May 11, 1920.

WITNESSES Zb'allurhomfit may concern; E p

I i i I SAMUEL, L rriin'r, a' citizen. of theUnited $tates, andresident 0t East Cleveland, .in the county. of .Cu'yahoga' and State: of. Ohio, have invented certaln new and useful Improvements in Condens ing and VacuunrIumps, of w hich I hereby declare the following 'to be a fulh'clear, and Ly v p "em-1 with the float stops mp Be it known that'lI,

exact description, suchas will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a condensing pump and more particularly to a condensing pump of the type used on steam heating systems for drawing the condensed steam from the radiators and pumping suchcondensation back to the boiler to be again converted into steam.

The object of the present invention 15 to provide means for automatically drawing the condensed steam from the radiators and forcing such condensation back tothesteam' boiler. v

- In the accompanying drawing wherein I have shown an illustrative embodiment of my invention, Figure 1 is a vertical sectional view of my pump and Fig. 2 is a detail View of the valve sleeve which admits steam and a cold water spray alternately to the pump chamber.

Describing the various parts by reference characters, indicates the pump chamber casing which has an upper inlet opening E adapted to receive the exhaust line from the radiators (not shown), and a lower discharge opening G which is connected, through a check valve IV, to the boiler (not shown). A pipe I for admitting steam, and a pipe H for admitting a spray of cold water are fitted in axial alinement into the top and bottom of the chamber respectively, and connected by a union-R. The pipe I is provided on one side with a steam port through which steam escapes into the chamber and the pipe H is provided at its upper end with a series of small perforations or jet openings 0, through which the water escapes as a fine spray into the chamber. A sleeve valve K is slidable over the union R to alternately open and close 0 enings N and O. Pivoted at ']7]9, on the liorizontal bar Q are the rock arms or levers P-P which are forked attheir inner ends to embrace the sleeve valve K, as indicated at P'--P'. The union R is slotted as shown at s to allow vertical movement of the cong sAMunLL-IPPERT, OF EASTJQLEVEIQIANYDQOHIO;

" "1 ,.co1\inE NsmG =Ann vAcUuM;PUMP-.;

I I Specification of'Letters Patent fPiltlltea lIaYll, 1920. magma ar .A iig 'iist "2 1,, @913. s r al at, 46,709.} i i I necting pin S, which pivotallyfastens the leve1-s P 'P and, sleeve valve K' together. l h smovement of sleeve valve K serves to "alternately open port N thereby closing the jet openingsjt) and o Jen openings Othereby closing )ort N. 3 'l heouter ends of the levers are pivotally connected to a oke whi'ch isYprovided near its upper float L, which rises and falls within the yoke M according to the water le\vel in the chamber l engages at the upper limit of its movement with the stops -mm and at the lower limit of its mo vement withthe lower bar m of said yoke.

In operation, the pipe I is connected to the steam supply from the boiler and the pipe H is connected to any suitable source of cold water. The exhaust line from the radiators is connected to the opening E and the opening (lr is connected through the check valve \V to the water supply of the boiler. Steam passes through the radiators and is condensed and flows by gravity into the chamber F. As the chamber fills, the float L rises until it strikes against the stops mm, which serves to depress the valve K and open the steam port N.

Live steam under pressure from the boiler then enters and forces out the condensed water through check valve IV back to the water supply in the boiler. The admission of steam to the chamber serves to equalize the pressure on opposite sides of the check valve IV whereby water flows by gravity and steam pressure thereupon, into the boiler and when the float has fallen with the water level, the float will strike against ries of operations will be repeated as long as steam is available from the boiler.

While I have described my pump as used with a heating system it will be understood that it is not limited to the same except as set forth in the appended claims, and that it can be used wherever steam is available and it is desired to pump liquids. V

Ilavmg described the invention what l i UNITED siratriis PATENTAO IQE; e

claim as newmil.tlcsirelo secure by matters Patent is:

1. In a condensingpump,t]regconihinati n with av eomlensing ehamher, of'an inlet pipe.

provided with lateral penings, and asleeve valve slidingly inovahleover said openings I and operating to alternately open "and close the same. p H I All] a condensing pump, the combination with a eondensin; ehalnhel';ol' an 'inlet pipe for live steam aiul an inlet pipe JfOF eohl water, said pipes hein; ali'nm'lwvith each sleeve valve slidingly movable [oi'en saiil openings and operating: to alternately openv and. close the same, and float operatetil means;

\v-Rh-hw-said e-Iamhr for operating said valve.

3.4111 11,conrlensing pump of the character described, the combination, with a chamber, of-"a'supplyfpipe for steam communicating with said (-hamhei: and a supply pipe for i eohl, water eonnnunieatin; with sai l cha'mher, a valve ('QHHIIOH to both of said pipes within'sahl' eha nher aml adapted alternately to open the one and elose the other, and a l'l()i,lt 'l tllll l said chamber and connected to saiLlvalve. i

In 't estinion'v \vhereof 'l hereunto set in hand'thisnineteenth llav of August, 1915. other and provulerl with lateral openings, i 

